Most people on SSDI pay no federal income tax on their benefits

Whether you owe federal income tax on your SSDI depends on your combined income—not just what Social Security sends you. Combined income includes your SSDI payments, wages, interest, dividends, and other money you receive. If your combined income stays below a certain threshold, you owe nothing. If it goes above that threshold, you may owe tax on part of your benefits.

The threshold is low: $25,000 for a single person, or $32,000 for a married couple filing jointly. These numbers have not changed since 1984. Because they do not adjust for inflation, more people cross the threshold each year, even if their actual income has not grown.

The math is not straightforward. The IRS does not tax your entire SSDI payment if you go over the threshold. Instead, they tax either 50% or 85% of your benefits, depending on how far over you go. This means you might owe tax on only a portion of what you received.

Key Takeaways

  • You will owe federal income tax on part of your SSDI only if your combined income exceeds $25,000 (single) or $32,000 (married filing jointly).
  • Combined income includes SSDI, wages, self-employment income, interest, dividends, and other sources—not just earnings from work.
  • If you do owe tax, you pay it on 50% to 85% of your benefits, not the full amount.
  • You can ask Social Security to withhold federal income tax from your monthly payment so you do not owe a large bill at tax time.
  • State income tax rules vary; some states tax SSDI and some do not, regardless of federal rules.

How the IRS calculates what portion of your SSDI is taxable

The calculation has two steps. First, add up your combined income: take your SSDI amount, add any wages or self-employment income, then add interest, dividends, and other income. Multiply your SSDI by one-half and add that to everything else. That total is your "combined income."

Second, compare that combined income to the threshold for your filing status. If you are single and your combined income is $25,000 or less, you owe no federal tax on your SSDI. If it is between $25,000 and $34,000, you may owe tax on up to 50% of your benefits. If it exceeds $34,000, you may owe tax on up to 85% of your benefits.

The actual amount you owe depends on how much you are over the threshold and what your other income is. The IRS worksheet in Publication 915 walks through the exact calculation, but most people use tax software or a tax preparer to get this right. Social Security also provides a worksheet on their website.

What counts as income for this calculation

Combined income includes far more than just your paycheck. It includes wages from any job, self-employment income, interest from savings accounts and bonds, dividends from stocks, rental income, pension payments, and distributions from retirement accounts like IRAs or 401(k)s. It also includes income from a spouse if you file jointly.

SSDI itself counts as half its value in this calculation—meaning Social Security counts $1 of SSDI as $0.50 toward your threshold. This is why the threshold is so straightforward to cross if you have any other income at all.

Income that does not count includes Supplemental Security Income (SSI), which is a different program; workers' compensation; certain veterans' benefits; and some other specific payments. If you receive both SSDI and SSI, only the SSDI portion is subject to this tax rule.

Whether you owe state income tax on SSDI

Federal rules do not control state tax. Some states do not tax SSDI at all, no matter how much other income you have. Other states follow federal rules exactly. A few states have their own thresholds or rules that differ from federal law.

The states that do not tax SSDI include California, Florida, Illinois, Louisiana, Mississippi, New York, Ohio, Pennsylvania, and several others. If you live in one of these states, you owe no state income tax on your SSDI, even if you owe federal tax. If you live in a state that does tax SSDI, you will need to check that state's specific rules, which may use a different threshold or calculation than the federal government uses.

Your state tax return instructions or your state's revenue department website will tell you whether SSDI is taxable in your state. If you moved during the year, you may owe tax to two states, and the rules can be complex.

How to avoid a large tax bill: withholding from your SSDI payment

If you know you will owe federal income tax on your SSDI, you can ask Social Security to withhold money from your monthly payment. This way, you pay the tax gradually throughout the year instead of owing a lump sum when you file your return.

To set up withholding, fill out Form W-4V and send it to your local Social Security office, or submit it online through your my Social Security account. You can choose to withhold 7%, 10%, 15%, or 25% of your monthly benefit. You can change or stop withholding at any time.

Withholding is optional, but it often makes sense if you have other income and expect to owe tax. Without withholding, you might owe a large bill in April, and if you do not pay it, the IRS can take future tax refunds or Social Security payments to cover what you owe.

What happens if you do not pay the tax you owe

If you file your tax return and owe federal income tax but do not pay, the IRS can offset your future Social Security payments. This means they can take money from your monthly SSDI check to cover the debt. The IRS can also take any federal tax refund you are owed in future years.

If the amount is large, the IRS may also charge penalties and interest on top of what you already owe. Setting up a payment plan with the IRS is usually better than ignoring the debt, because it stops the penalties from growing and gives you time to pay.

If you cannot pay what you owe, the IRS has programs for people in financial hardship. You can request a payment plan, ask for an offer in compromise (paying less than you owe), or request a temporary delay while you get back on your feet. A tax professional or the IRS directly can explain these options.

Frequently Asked Questions

Do I have to file a tax return if I only receive SSDI?

No. If SSDI is your only income and it is below the threshold, you do not have to file a federal tax return. However, if you have other income—even a small amount of wages or interest—you may need to file. Check the IRS filing requirements for your age and income level on IRS.gov.

What if I worked part of the year and received SSDI the rest?

Your combined income includes both your wages and your SSDI. Add them together, explore the threshold, and calculate whether any of your SSDI is taxable. If you earned wages, you likely crossed the threshold and owe tax on part of your benefits. A tax preparer can help you calculate the exact amount.

Can I deduct my medical expenses to lower my taxable SSDI?

No. Medical expenses do not reduce your combined income for SSDI tax purposes. You can only deduct medical expenses on your tax return if you itemize deductions and your total medical expenses exceed a high threshold (7.5% of your adjusted gross income for 2024). Most people on SSDI do not reach that threshold.

If I get a refund, can the IRS take it to pay back taxes I owe?

Yes. The IRS can offset your federal tax refund to pay any back taxes, penalties, or interest you owe. They can also offset your Social Security payments. If you owe money to the IRS, tell them before you file so you understand what to expect.

Does working part-time affect my SSDI and my taxes?

Yes, in two ways. First, if you earn too much from work, Social Security may reduce or stop your SSDI payment—this is separate from taxes. Second, your wages count toward your combined income for tax purposes, so you are more likely to owe tax on your SSDI. Contact Social Security before you start working to understand how it affects your benefits.